Find the LCM of 476, 172, 420, 978 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 476, 172, 420, 978. So, keep reading to learn more.
Given numbers are 476,172,420,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 476,172,420,978 is 50044260.
Find LCM of 476,172,420,978 with Prime Factorization
2 | 476, 172, 420, 978 |
2 | 238, 86, 210, 489 |
3 | 119, 43, 105, 489 |
7 | 119, 43, 35, 163 |
17, 43, 5, 163 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 17 x 43 x 5 x 163 = 50044260
Therefore, the lowest common multiple of 476,172,420,978 is 50044260.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
476 x 172 x 420 x 978 = 33629742720
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
476 : 1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476
172 : 1, 2, 4, 43, 86, 172
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
978 : 1, 2, 3, 6, 163, 326, 489, 978
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 476,172,420,978, is 2.
Now, the common factors can be found like this.
476:2x 2x 7x 17
172:2x 2x 43
420:2x 2x 3x 5x 7
978:2x 3x 163
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 2x 3x 7 = 336
Therefore, the value for common factors is 336.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 33629742720/(2x336)
LCM = 33629742720/672
LCM = 50044260
Thus, we can understand that the LCM of 476,172,420,978 is 50044260.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 476, 172, 420, 978?
Answer: LCM of 476, 172, 420, 978 is 50044260.
2. How to calculate the LCM of 476, 172, 420, 978?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 476, 172, 420, 978.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.